teachFlow = 
[
	 {
		 tip:"打开药品库",
		 tag:TAG_BUTTON_LIB,
		 create:[],
		 destroy:[],
		 node:true,
		 nodeName:"配置粗盐溶液"
	 },
	 {
		 tip:"取出滤纸，分别放在天平左右托盘上",
		 tag:[TAG_LIB,
		 TAG_LIB_PAPER3
		 ]
	 },
	 {
		 tip:"调节平衡螺母",
		 tag:[
		      TAG_NUT
		      ]
	 },
	 {
		 tip:"取出砝码盒，并将5g砝码放置天平右托盘",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_BOX
		      ]
	 },
	 {
		 tip:"取出粗盐",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_SALT
		      ]
	 },
	 {
		 tip:"打开粗盐广口瓶盖",
		 tag:[
		      TAG_SALT_BOTTLE,
		      TAG_LID
		      ]
	 },
	 {
		 tip:"用药匙，取5g粗食盐,放在天平左端",
		 tag:[
		      TAG_SALT_BOTTLE,
		      TAG_SPOON
		      ]
	 },
	 {
		 tip:"在药品库中取出一个烧杯1号",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_BEAKER
		      ],
		action:ACTION_DO1,
	 },
	 {
		 tip:"把粗盐放入烧杯1号",
		 tag:TAG_PAPER
	 },
	 {
		 tip:"把天平右边的砝码移出",
		 tag:[
		      TAG_BALANCE,
		      TAG_FAMA
		      ]
	 },	 
	 {
		 tip:"在药品库中取出量筒",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_CYLINDER
		      ]
	 },
	 {
		 tip:"在药品库中取出蒸馏水",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_KETTLE
		      ],
	 },
	 {
		 tip:"用量筒量取30ml蒸馏水",
		 tag:TAG_KETTLE
	 },
	 {
		 tip:"烧杯1号中加入30ml蒸馏水",
		 tag:TAG_CYLINDER
	 },
	 {
		 tip:"在药品库中取出玻璃棒,搅拌,静置,等待溶解",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_ROD
		      ],
		      action:ACTION_DO1
	 },
	 {
		 tip:"打开药品库",
		 tag:TAG_BUTTON_LIB,
		 node:true,
		 nodeName:"过滤普通杂质"
	 },
	 {
		 tip:"在药品库中取出铁架台",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_IRON
		      ]
	 },
	 {
		 tip:"在药品库中取出烧杯2号放在铁架台上",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_BEAKER
		      ],
		      action:ACTION_DO2
	 },
	 {
		 tip:"在药品库中取出漏斗",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_FUNNEL
		      ]
	 },
	 {
		 tip:"在药品库中取出滤纸",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_PAPER
		      ]
	 },
	 {
		 tip:"按照提示,折叠成圆锥状，紧贴漏斗放好",
		 tag:[
		      TAG_WIN_NODE,
		      TAG_WIN_CLOSE
		      ],
		      action:ACTION_DO1
	 },
	 {
		 tip:"在药品库中取出玻璃棒,用玻璃棒靠三层滤纸",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_ROD
		      ],
		      action:ACTION_DO2
	 },
	 {
		 tip:"按照提示,放置玻璃棒",
		 tag:[
		      TAG_WIN_NODE,
		      TAG_WIN_CLOSE
		      ],
		      action:ACTION_DO2
	 },
	 {
		 tip:"把烧杯1号中的粗盐溶液通过玻璃棒引流并过滤，弃去沉淀",
		 tag:TAG_BEAKER
	 },
	 {
		 tip:"打开药品库",
		 tag:TAG_BUTTON_LIB,
		 node:true,
		 nodeName:"过滤硫酸根离子"
	 },
	 {
		 tip:"在药品库中取出三脚架",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_SHELF
		      ]
	 },
	 {
		 tip:"在药品库中取出石棉网，放置三脚架上",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_NET
		      ]
	 },
	 {
		 tip:"把烧杯2号放在石棉网上",
		 tag:TAG_BEAKER2,
		 action:ACTION_DO1
	 },
	 {
		 tip:"在药品库中取出1mol/L的氯化钡溶液",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_BACL2
		      ]
	 },
	 {
		 tip:"向滤液中滴加适量氯化钡",
		 tag:[
		      TAG_BACL,
		      TAG_DROP
		      ],
		      action:ACTION_DO1
	 },
	 {
		 tip:"在药品库中取出酒精灯",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_LAMP
		      ]
	 },
	 {
		 tip:"打开酒精灯帽",
		 tag:[
		      TAG_LAMP,
		      TAG_LAMP_LID
		      ],
		      action:ACTION_DO1
	 },
	 {
		 tip:"在药品库中取出火柴,点燃酒精灯",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_MATCH
		      ]
	 },
	 {
		 tip:"把酒精灯放入三脚架",
		 tag:[
		      TAG_LAMP,
		      TAG_LAMP
		      ],
		      action:ACTION_DO1
	 },
	 {
		 tip:"加热2-3分钟，至完全沉淀"
	 },
	 {
		 tip:"在药品库中再取出一个烧杯3号放在铁架台上",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_BEAKER
		      ],
		      action:ACTION_DO3
	 },
	 {
		 tip:"把烧杯2号中的溶液通过漏斗过滤，弃去沉淀",
		 tag:TAG_BEAKER2,
		 action:ACTION_DO2
	 },
	 {
		 tip:"把烧杯3号放在石棉网上",
		 tag:TAG_BEAKER3,
		 action:ACTION_DO1
	 },
	 {
		 tip:"打开药品库",
		 tag:TAG_BUTTON_LIB,
		 node:true,
		 nodeName:"过滤钙镁离子"
	 },
	 {
		 tip:"在药品库中取出2mol/L的NaOH溶液",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_NAOH
		      ]
	 },
	 {
		 tip:"向滤液中滴加适量NaOH",
		 tag:[
		      TAG_NAOH,
		      TAG_DROP
		      ],
		      action:ACTION_DO2
	 },
	 {
		 tip:"在药品库中取出2mol/L的碳酸钠溶液",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_NA2CO3
		      ]
	 },
	 {
		 tip:"向滤液中滴加适量碳酸钠，至完全沉淀",
		 tag:[
		      TAG_NA2CO3,
		      TAG_DROP
		      ],
		      action:ACTION_DO3
	 },
	 {
		 tip:"在药品库中再取出一个烧杯4号放在铁架台上",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_BEAKER
		      ],
		      action:ACTION_NONE
	 },
	 {
		 tip:"玻璃棒引流，把烧杯3号中的溶液通过滤纸过滤，弃去沉淀",
		 tag:TAG_BEAKER3,
		 action:ACTION_DO2
	 },
	 {
		 tip:"取出烧杯4号",
		 tag:TAG_BEAKER4,
		 action:ACTION_DO1
	 },
	 {
		 tip:"打开药品库",
		 tag:TAG_BUTTON_LIB,
		 node:true,
		 nodeName:"去除碳酸根和氢氧根离子"
	 },
	 {
		 tip:"在药品库中取出6mol/L的HCl溶液",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_HCl
		      ]
	 },
	 {
		 tip:"向滤液中滴加适量HCl",
		 tag:[
		      TAG_HCL,
		      TAG_DROP
		      ],
		      action:ACTION_DO2
	 },
	 {
		 tip:"在药品库中取出pH试纸和比色卡",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_PH
		      ]
	 },
	 {
		 tip:"在药品库中取出玻璃棒,蘸取一滴溶液放到pH试纸上",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_ROD
		      ],
		      action:ACTION_DO1
	 },
	 {
		 tip:"对比比色卡颜色,颜色在pH4到5之间",
		 tag:[
		      TAG_PH_NODE,
		      TAG_PH
		      ],
		      action:ACTION_DO1
	 },
	 {
		 tip:"打开药品库",
		 tag:TAG_BUTTON_LIB,
		 node:true,
		 nodeName:"蒸发浓缩成精盐晶体"
	 },
	 {
		 tip:"在药品库中取出一个蒸发皿在三脚架上",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_POT
		      ]
	 },
	 {
		 tip:"把烧杯4号的溶液倒入蒸发皿中",
		 tag:TAG_BEAKER4,
		 action:ACTION_DO2
	 },
	 {
		 tip:"在药品库中取出玻璃棒,搅拌,蒸发,浓缩",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_ROD
		      ],
		      action:ACTION_DO1
	 },
	 {
		 tip:"水分快要蒸干时，撤去酒精灯",
		 tag:[
		      TAG_LAMP,
		      TAG_LAMP
		      ],
		      action:ACTION_DO2
	 },
	 {
		 tip:"用酒精灯帽熄灭酒精灯",
		 tag:[
		      TAG_LAMP,
		      TAG_LAMP_LID
		      ],
		      action:ACTION_DO2
	 },
	 {
		 tip:"等待冷却至室温"
	 },
	 {
		 tip:"在药品库中取出气压机",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_AIR
		      ]
	 },
	 {
		 tip:"在药品库中取出药匙",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_SPOON
		      ]
	 },
	 {
		 tip:"用药匙把蒸发皿中的食盐刮到布氏漏斗里",
		 tag:[
		      TAG_POT_NODE,
		      TAG_POT
		      ]
	 },
	 {
		 tip:"找到气压机开关按钮",
		 tag:TAG_AIR
	 },
	 {
		 tip:"按下开关,启动气压机,生成固体NaCl",
		 tag:[
		      TAG_AIR_SIDE_NODE,
		      TAG_AIR_SIDE_BT
		      ]
	 },
	 {
		 tip:"在药品库中取出酒精",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_ALCOHOL
		      ]
	 },
	 {
		 tip:"用酒精洗涤固体NaCl",
		 tag:[
		      TAG_ALCOHOL,
		      TAG_DROP
		      ],
		      action:ACTION_DO2
	 },
	 {
		 tip:"在药品库中取出滤纸",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_PAPER2
		      ]
	 },
	 {
		 tip:"生成NaCl晶体，用药匙，把NaCl晶体刮到滤纸上",
		 tag:[
		      TAG_AIR,
		      TAG_AIR_FUNNEL
		      ]
	 },
	 {
		 tip:"把滤纸移到天平左端,拨动游码,称重",
		 tag:TAG_PAPER2,
		 action:ACTION_DO1
	 },
	 {
		 tip:"在药品库中取出装精盐的广口瓶",
		 tag:[
		      TAG_LIB,
		      TAG_LIB_WIDE
		      ]
	 },
	 {
		 tip:"打开广口瓶的盖子",
		 tag:[
		      TAG_WIDE_NODE,
		      TAG_WDIE_LID
		      ],
		      action:ACTION_DO1
	 },
	 {
		 tip:"把滤纸中的精盐装入广口瓶",
		 tag:TAG_PAPER2,
		 action:ACTION_DO2
	 },
	 {
		 tip:"盖上广口瓶的盖子",
		 tag:[
		      TAG_WIDE_NODE,
		      TAG_WDIE_LID
		      ],
		      action:ACTION_DO2
	 },
	 {
		 tip:"恭喜过关",
		 over:true
	 }
]